Networking - Explain TCP Windowing concept

Explain TCP Windowing concept.

- TCP Windowing is a concept that is used for avoiding congestion in the network traffic.

- Unacknowledged amount of data that is sent by the sender before the data gets acknowledgment back from the receiver that it has received it is controlled.

- The limited buffer space is compensated (where data which is temporarily stored until the appropriate application processes it), the TCP hosts agree to limit the amount of unacknowledged data that can be in transit at any given time.

- This is known as the window size, and a 16-bit field in the TCP header communicates it.
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